Greetings,

I assume this is mold that you have in your home?  The following comes from Oregon Health Authority's Recommendations and I am also including resources we have on addressing home mold issues.

Should I test for mold or have mold samples from my home tested?

Generally it is not helpful to test for mold in your home. There are no standards to judge "safe" levels of indoor mold. Therefore, testing cannot tell you if the amount of mold detected will harm your health. Typically if you can see mold or smell musty odors, you have a mold problem.

See their recomendations for addressing your mold issue here: https://www.oregon.gov/oha/ph/healthyenvironments/healthyneighborhoods/toxicsubstances/pages/mold.aspx


Additional resources:
Mold Control Home Inspection Checklist
https://extension.oregonstate.edu/families-health/healthy-homes/mold-control-home-inspection-checklist

How to get rid of mold in my home: https://extension.oregonstate.edu/ask-extension/featured/how-get-rid-mold-my-home#:~:text=Since%20you%20can%20see%20mold,does%20not%20recommend%20mold%20testing.